Finding the Fourth Proportional to 78,007.98, 107,650.86 and 42,198.06

Step by Step Solution

1. Step 1: Write the proportion equation
   78,007.98 : 107,650.86 = 42,198.06 : x
2. Step 2: Convert to fraction form
   78,007.98/107,650.86 = 42,198.06/x
3. Step 3: Cross multiply
   78,007.98x = 107,650.86 × 42,198.06
4. Step 4: Simplify right side
   78,007.98x = 4,542,657,449.33
5. Step 5: Solve for x
   x = 4,542,657,449.33/78,007.98
6. Step 6: Final answer
   x = 58,233.24